?null point

null point發(fā)音

英：　　美：

null point中文意思翻譯

常用釋義：零點(diǎn)：溫度、電壓、壓力等物理量的零值點(diǎn)。

[數]零點(diǎn)

null point雙語(yǔ)使用場(chǎng)景

1、There are other places on the planet that are difficult to live, and that's at the null point.───在這星球還有其它地方難于生存，那是在零點(diǎn)上。

2、The metaphase plate would thus be the null point between two equal but oppositely directed and acting groups of kinetochore tubules.───中期板大概是兩個(gè)相等而方向相反的放射狀著(zhù)絲點(diǎn)微管群之間的平衡點(diǎn)。

3、The metaphase plate would thus be the null point between two equal but oppositely directed and acting groups of kinetochore tubules.───中期板大概是兩個(gè)相等而方向相反的放射狀著(zhù)絲點(diǎn)微管群之間的平衡點(diǎn)。

4、A type of capacitive microsensor whose null point and gain can be regulated is introduced here.───文中介紹一種可調零點(diǎn)和增益的電容式微型傳感器。

5、The device provides extreme sensitivity through a small range around the null point .───此裝置在零點(diǎn)附近很小一段范圍內具有極高的靈敏度。

6、The Property of Electric Drift of Null Point Output for the Pressure Sensors Excited by a Self- balanced Bridge───自平衡電橋激勵的壓力傳感器零點(diǎn)輸出信號的電漂移特性

7、By means of the null point, growth index analysis and displacement distance plot, the authors discussed the process of negative structure inversion.───采用零點(diǎn)、距離位移曲線(xiàn)和生長(cháng)指數等定量分析方法，討論了斷裂的構造負反轉過(guò)程。

8、Theoretical Analysis for Influence of the Applied and Bridge Voltage on Null Point and Sensitivity for Pressure Sensors───外加電壓和橋電壓對壓力傳感器零點(diǎn)和靈敏度影響理論分析

9、The first ever evidence for a direct observation of a magnetic null point───該項研究首次獲得了磁零點(diǎn)的直接觀(guān)測證據

null point相似詞語(yǔ)短語(yǔ)

1、null bot───空機器人

2、null definition───空定義

3、assert null───斷言為空

4、token null───標記為空

5、aleph null───aleph空

6、drools null───無(wú)人機零點(diǎn)

7、igneous null───火成巖零

8、null island───空島

9、null byte───空字節

為啥出現空指針異常？如何處理？

空指針異常發(fā)生的原因是你使用null調用了某個(gè)方法，而這個(gè)null本該是一個(gè)具體的對象。發(fā)生空指針異常還是比較容易定位的。一般分兩種情況，一種是對象可為null，這時(shí)只要添加判斷就可以，另一種是對象不可為null，那就要這個(gè)對象為何查詢(xún)出null，具體解決。