2022年聚集大全C代碼優(yōu)化的一些案例

1、C#代碼優(yōu)化旳案例代碼簡潔代碼簡潔，減少代碼量，初始值盡量在屬性上設立，而不是編寫代碼。合同記錄分析中JToolComBox_ColmunType_SelectedIndexChanged措施中：switch (jToolComBox_ColmunType.SelectedIndex.ToString() case 0:/執(zhí)行金額 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e22; jWebChart1.SetUrl(); break; case 1:/變更金額 jWebChart1.chartId = 9cc897e5-99d

2、d-468d-84db-3390a18f0e23; jWebChart1.SetUrl(); break; case 2:/索賠金額 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e24; jWebChart1.SetUrl(); break; case 3:/付款批復金額 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e25; jWebChart1.SetUrl(); break; case 4:/實際支付金額 jWebChart1.chartId = 9cc897e5

3、-99dd-468d-84db-3390a18f0e26; jWebChart1.SetUrl(); break; case 5:/合同份數 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e27; jWebChart1.SetUrl(); break; default:/執(zhí)行金額 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e22; jWebChart1.SetUrl(); break; 重構后：switch (jToolComBox_ColmunType.Select

4、edIndex.ToString() case 0:/執(zhí)行金額 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e22; break; case 1:/變更金額 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e23; break; case 2:/索賠金額 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e24; break; case 3:/付款批復金額 jWebChart1.chartId = 9cc897e5

5、-99dd-468d-84db-3390a18f0e25; break; case 4:/實際支付金額 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e26; break; case 5:/合同份數 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e27; break; default:/執(zhí)行金額 jWebChart1.chartId = 9cc897e5-99dd-468d-84db-3390a18f0e22; break; jWebChart1.SetUrl();合同綜

6、合查詢中jTabControl8_SelectedIndexChanged措施中多種If語句(3個以上)，改寫為switch合同綜合查詢中JeMisQuery_V_HT_CONTRACT_SHOW_TJ_OnQueryFinished措施中/請?zhí)顚懩_本 decimal de_SIGN_AMOUNT = 0; decimal de_ALTER_AMOUNT = 0; decimal de_ALL_CLAIM_AMOUNT = 0; decimal de_PAY_AMOUNT = 0; decimal de_ALL_RP_AMOUNT = 0; decimal de_EXE_AMOUNT = 0;

7、 decimal de_APPLY_AMOUNT = 0; decimal de_APPLY_APPROVE_AMOUNT = 0; string str_where = eMisQuery_V_HT_CONTRACT_SHOW.UserCustomCondition; string sql = select count(*) as ht_contract_count,sum(SIGN_AMOUNT)nvl(sum(SIGN_AMOUNT), 0) as SIGN_AMOUNT,sum(ALTER_AMOUNT) as ALTER_AMOUNT, + sum(ALL_CLAIM_AMOUNT)

8、as ALL_CLAIM_AMOUNT,sum(PAY_AMOUNT) as PAY_AMOUNT, sum(ALL_RP_AMOUNT) as ALL_RP_AMOUNT, sum(EXE_AMOUNT) as EXE_AMOUNT + ,sum(APPLY_AMOUNT) as APPLY_AMOUNT, sum(APPLY_APPROVE_AMOUNT) as APPLY_APPROVE_AMOUNT from GCMIS.v_ht_contact_show t where + str_where; DataSet ds = eMisSurface1.ExecQuerySql(sql);

9、 if (ds != null & ds.Tables.Count 0) /故意義不，肯定為True DataRow dr = ds.Tables0.Rows0; jLabel_Jl.Text = drht_contract_count.ToString(); object obj = drSIGN_AMOUNT; de_SIGN_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); /為什么要jLabel_QD.Text = drSIGN_AMOUNT.ToString(0.00); 先轉成Decimal，再轉成String jLab

10、el_QD.Text = de_SIGN_AMOUNT.ToString(0.00); obj = drALTER_AMOUNT; de_ALTER_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); jLabel_BG.Text = de_ALTER_AMOUNT.ToString(0.00); obj = drALL_CLAIM_AMOUNT; de_ALL_CLAIM_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); jLabel_SP.Text = de_ALL_C

11、LAIM_AMOUNT.ToString(0.00); obj = drPAY_AMOUNT; de_PAY_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); jLabel_ZF.Text = de_PAY_AMOUNT.ToString(0.00); obj = drALL_RP_AMOUNT; de_ALL_RP_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); jLabel_JF.Text = de_ALL_RP_AMOUNT.ToString(0.00); obj

12、 = drEXE_AMOUNT; de_EXE_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); jLabel_ZX.Text = de_EXE_AMOUNT.ToString(0.00); obj = drAPPLY_AMOUNT; de_APPLY_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); jLabel_SQ.Text = de_APPLY_AMOUNT.ToString(0.00); obj = drAPPLY_APPROVE_AMOUNT; de_APPL

13、Y_APPROVE_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); jLabel_PF.Text = de_APPLY_APPROVE_AMOUNT.ToString(0.00); Else /永遠不會執(zhí)行 jLabel_Jl.Text = 0; jLabel_QD.Text = 0.00; jLabel_BG.Text = 0.00; jLabel_SP.Text = 0.00; jLabel_ZF.Text = 0.00; 應當直接在屬性中設立初始值 jLabel_JF.Text = 0.00; jLabel_ZX.Text

14、= 0.00; jLabel_SQ.Text = 0.00; jLabel_PF.Text = 0.00; return; 提高代碼旳執(zhí)行效率盡量減少不必要旳計算、循環(huán)等，提高代碼旳效率合同記錄分析GET_CONTRACT_COLLECT_SOURCE措施decimal de_SIGN_AMOUNT = 0; decimal de_ALTER_AMOUNT = 0; decimal de_ALL_CLAIM_AMOUNT = 0; decimal de_PAY_AMOUNT = 0; decimal de_ALL_RP_AMOUNT = 0; decimal de_EXE_AMOUNT = 0

15、; decimal de_APPLY_AMOUNT = 0; decimal de_APPLY_APPROVE_AMOUNT = 0; decimal de_FINAL_AMOUNT = 0; int conatratCount = dt.Rows.Count; if (conatratCount = 0) this.jLabel_Contrat_Count.Text = 0; jLabel_SIGN_AMOUNT.Text = 0.00; jLabel_ALTER_AMOUNT.Text = 0.00; jLabel_CLAIM_AMOUNT.Text = 0.00; jLabel_PAY_

16、AMOUNT.Text = 0.00; jLabel_RP_AMOUNT.Text = 0.00; jLabel_EXE_AMOUNT.Text = 0.00; jLabel_APPLY_AMOUNT.Text = 0.00; jLabel_APPROVE_AMOUNT.Text = 0.00; return; DataTable cloneTable = dt.Clone(); foreach (DataRow item in dt.Rows) string code = itemZONE_CODE.ToString(); string codeLength = code.Split(_);

17、 if (codeLength.Length = 3) DataRow copyRow = cloneTable.NewRow(); copyRow.ItemArray = item.ItemArray.Clone() as object; cloneTable.Rows.Add(copyRow); object obj = cloneTable.Compute(sum(CONTACT_COUNT), true); string count = Convert.ToString(obj is DBNull ? 0 : obj); this.jLabel_Contrat_Count.Text =

18、 count; obj = cloneTable.Compute(sum(SIGN_AMOUNT), true); de_SIGN_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); this.jLabel_SIGN_AMOUNT.Text = de_SIGN_AMOUNT.ToString(0.00); obj = cloneTable.Compute(sum(ALTER_AMOUNT), true); de_ALTER_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj);

19、this.jLabel_ALTER_AMOUNT.Text = de_ALTER_AMOUNT.ToString(0.00); obj = cloneTable.Compute(sum(ALL_CLAIM_AMOUNT), true); de_ALL_CLAIM_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); this.jLabel_CLAIM_AMOUNT.Text = de_ALL_CLAIM_AMOUNT.ToString(0.00); obj = cloneTable.Compute(sum(PAY_AMOUNT), tr

20、ue); de_PAY_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); this.jLabel_PAY_AMOUNT.Text = de_PAY_AMOUNT.ToString(0.00); obj = cloneTable.Compute(sum(ALL_RP_AMOUNT), true); de_ALL_RP_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); this.jLabel_RP_AMOUNT.Text = de_ALL_RP_AMOUNT.ToString

21、(0.00); obj = cloneTable.Compute(sum(EXE_AMOUNT), true); de_EXE_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); this.jLabel_EXE_AMOUNT.Text = de_EXE_AMOUNT.ToString(0.00); obj = cloneTable.Compute(sum(APPLY_AMOUNT), true); de_APPLY_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); this

22、.jLabel_APPLY_AMOUNT.Text = de_APPLY_AMOUNT.ToString(0.00); obj = cloneTable.Compute(sum(APPLY_APPROVE_AMOUNT ), true); de_APPLY_APPROVE_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); this.jLabel_APPROVE_AMOUNT.Text = de_APPLY_APPROVE_AMOUNT.ToString(0.00); obj = cloneTable.Compute(sum(FINA

23、L_AMOUNT ), true); de_FINAL_AMOUNT = Convert.ToDecimal(obj is DBNull ? 0.00 : obj); this.jLabel_FINAL_AMOUNT.Text = de_FINAL_AMOUNT.ToString(0.00);重構后：DataRow hz_Row = dt.Select(ZONE_CODE=DT); if (hz_Row.Length = 0) return; DataRow cur_hzRow = hz_Row0; this.jLabel_Contrat_Count.Text = cur_hzRowCONTA

24、CT_COUNT.ToString(); this.jLabel_SIGN_AMOUNT.Text = cur_hzRowSIGN_AMOUNT.ToString(); this.jLabel_ALTER_AMOUNT.Text = cur_hzRowALTER_AMOUNT.ToString(); this.jLabel_CLAIM_AMOUNT.Text = cur_hzRowALL_CLAIM_AMOUNT.ToString(); this.jLabel_PAY_AMOUNT.Text = cur_hzRowPAY_AMOUNT.ToString(); this.jLabel_RP_AM

25、OUNT.Text = cur_hzRowALL_RP_AMOUNT.ToString(); this.jLabel_EXE_AMOUNT.Text = cur_hzRowEXE_AMOUNT.ToString(); this.jLabel_APPLY_AMOUNT.Text = cur_hzRowAPPLY_AMOUNT.ToString(); this.jLabel_APPROVE_AMOUNT.Text = cur_hzRowAPPLY_APPROVE_AMOUNT.ToString(); this.jLabel_FINAL_AMOUNT.Text = cur_hzRowFINAL_AMOUNT.ToString();合同記錄分析JBtn_Query_Click措施if (jCHK_ALL.Checked != true) if (jCHK_FENG.Checked) sb.Append( G.PROJECT_TYPE IN(1); if (jCHK_HUO.Checked) if (sb.Length = 0) sb.Append( G.PROJECT_TYPE IN(0); else sb.Append(,0); if (jCHK_SHUI.Checked) if (sb.Length = 0) sb.Ap